Friction closed container



Dec. 26, 1933. I w. F. PUNTE I 1,941,050

FRICTION CLOSED CONTAINER Filed May 23, 1932 will i am E'Bunie,

Patented Dec. 26, 1933 UNITED STATES PATENT OFFICE FRICTION CLOSEDCONTAINER Application May 23, 1932. Serial No. 613,093

1 Claim.

to a container wherein the cover is yieldingly retained on the body ofthe container.

An object of the invention is to provide a container with a yieldingretaining means which is wholly concealed beneath the cover flange.

A further object of the invention is to provide a friction closure for acontainer which is especially adapted for securing the cover to acontainer body which is irregular or elliptical in shape.

In the drawing- Figure 1 is a plan view with parts broken away of thecontainer embodying the invention;

Fig. 2 is a view partly in 'side elevation and partly in cross section;

Fig. 3 is an enlarged 3-3 of Fig. 4; and

Fig. 4 is an enlarged sectional view on the line 4-4 of Fig. 1.

The invention is shown as applied to a container which is elliptical inshape. The container includes a body portion to which a bottom issecured by seaming, and the upper edge portion of the body wall isrolled inwardly to form a closed bead which gives rigidity to the upperedge wall of the container. The cover is provided with a dependingflange which slips down outside of the container body. The lower edge ofthe depending flange is rolled inwardly to form a closed hollow bead,the inner face of which is circular in cross section. Adjacent the upperedge of the body portion are provided outwardly extending, verticallyrounded projections so dimensioned as to yieldingly and firmly hold theclosureon the body. These projections are formed from the body wall ofthe container at the extreme upper portion thereof and in rear of thehollow bead on the container body. When the cover is slipped down overthe container body, the head on the cover will engage the projectionsand the metal parts will spring so as to allow the cover beads to passthe projections and be yieldingly retained on the container body.

Referring more in detail to the drawing, the container includes a bodyportion 1 which is elliptical in shape or cross section. Secured to thebody portion is a bottom 2 attached thereto, by the interfolding of theparts to form a seam which is indicated at 3. The upper edge of the bodyis rolled inwardly to form a hollow closed bead 4 which greatlystrengthens the edge of the body wall and gives rigidity thereto. Thecover is indicated at 5 in the drawing. The cover has sectional view onthe line a depending flange 6 which slips down outside of the containerbody. Said flange is rolled inwardly at the lower edge thereof to form ahollow closed bead '7 which is substantially circular in cross sectionat the inner face thereof.

The body wall 1 of the container adjacent the upper edge thereof anddirectly opposite the hollow bead is provided with outwardly projectingportions 8 which are rounded in vertical cross section. As shown in Fig.1, there are eight projections equally spaced from each other. Theseprojections are so dimensioned that the exterior diameter of theprojecting portions is slightly greater than the interior diameter ofthe hollow bead on the cover. When the cover is placed on the containerbody and pressure applied, there will be a springing of the cover flangeso that the hollow bead on the cover will pass the projections. Theprojections may also yield inwardly slightly. There is'a yielding of theparts to permit the hollow bead onthe cover flange to pass theprojections, as shown in Fig. 4. Inasmuch as these projections arespaced from each other, 'there can be a springing inwardly of the bodywall at the projections with an outward bowing of the body wall betweenthe projections. The same is true of the bead on the cover flange. Itmay spring out in one region and in at another. Therefore, by thespacing of the projections, the metal parts will yield to allow thehollow bead to pass the projections. The cover will therefore beretained on the container body so that it will not be easily dislodgedtherefrom. At the same time the cover can be lifted from the containerbody by hand force without requiring the use of any tool.

In the drawing there is shown a disk or pad 9 which is located withinthe cover and which overlies the hollow bead on the container. This diskor pad may be of felt or any other suitable material and aids in theproducing of a seal for the container. The disk or pad, however, may bedispensed with if desired.

While the invention is shown as applied to a container which is oval orelliptical in cross section, it will be understood that it may be usedin connection with a cylindrical container or containers of other crosssectional shape.

It is obvious that minor changes in the details of construction may bemade without departing from the spirit of the invention as set forth inthe appended claim.

Having thus described the invention, what I claim as new and desire tosecure by Letters Patent, is:

inwardly at the lower edge portion to form a closed hollow bead, saidprojections and hollow head on the cover flange being dimensioned andlocated so that said bead will contact with the projections and springpast said projections for the retaining of the cover on the containerbody.

WILLIAM F. PUNTE.

